Vacuum vapor oil burner



Sept. 8192s.

A. A. RUSTEBERG VACUUM VAPOR OIL BURNER 2 Sheets-Shoot 2 Filed Aug. 20. 1923 5 E s E E Cal Patented Sept. 8, 1925.

UNITED STATES ENT OFFICE.

PAT

AUGUST A. RUSTEBER-G, OF CHICAGO, ILIIINOIS, ASSIGNOR OF ONE-THIRD T GEORGE E. BRACK, OF CHICAGO, ILLINOIS.

VACUUM VAPO'R OIL Il3U1R'FNER.

Application filed August 20, 1923. Serial No. 658,213.

To all whom it may concern: v

Be it known that I, AUGUST A. RUSTEBERG, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Vacuum Vapor Oil Burner; and I hereby declare that thefollowing is a full, clear, and exact descriptionof the same, reference being bad to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification. i

This invention relates to an oil burner and control therefor and it is an object of this invention to provide an efficient burner that will avoid carbonization, and an automatic control that will shut off the supply of oil if the burner should go out.

ith these and other advantages in view which will become more apparent in the following description and disclosures, this invention comprises the novel mechanism and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar different views.

On the drawings:

Figure 1 is an elevational view of the oil burner and control therefor with a portion of a furnace shown in section.

Figure 2 is an enlarged sectional view through the burner showing the control in elevation.

Figure 3 is an enlarged transverse section through the upper arch of the burner.

Figure 4 is an enlarged sectional view through the safety device for controlling the flow of. oil after the burner has been accidently extinguished.

Figure 5 is an enlarged section upon the line 55 of Figure 2.

Figure 6 is a section upon the line 6-6 of Figure 4.. I

As shown on the drawings:

In the exemplification of this invention, there is shown a burner comprising a pair of concentric tubes 1 and 2; the outer tube 1 being integrally united at its lower end to the inner tube 2, and being provided with an oil pan 3 for burning oil for initially features in theheating the burner. Thespace between the two concentric tubes defines an oil chamber into which the oil is adapted to flow by gravity'through a supply pipe i. The outer tube 1 extends above the inner tube 2 and its upper end is curved in the form of an arch so as to extend downwardly. A perforated cap 5 is secured upon the said downwardly extending portion of the upper pipe section whereby the mixture will be thoroughly broken up at the combustion point. An air supply pipe 6 is connected to the inner tube forsupplying air to the burner, and a gas pipe 7 may extend through the air pipe just below the burner in case it is desired to use gas as a fuel.

The oil supply pipe 4 has a vertical standpipe 8 coupled thereto and this vertical standpipc communicates with an oil tank or reservoir .9 through a valve controlled pipe 10. An oil strainer 11 may be connected in the vertical standpipe. Below the strainer 11 there is an automatically operated valve in the standpipe, the operating lever 12 of which is only shown as the valve may be of any known construction. The valve lever 12 has an outer bifurcated end for receiving a stud 13 secured upon the arm 14 of a thermostatically controlled rod 15. The rod 15 has a valve 16 attached at its lower end which is guided in a casing 17 extending around the air pipe which is suitably slotted for receiving the valve 16. As the rod" 15 is vertically reciprocated by the thermostat (not shown), the oil valve and air valve will accordingly be regulated to increase or decrease the flow of oil and air.

At the juncture of the vertical pipe 8 and the supply pipe 4.,there is another valve, the operating lever 18 of which is only shown. This valve is adapted for closin the vertical pipe 8 to stop the flow of oil an for opening the drain pipe 19 which is coupled to the supply pipe 4. The lever 18 is connected by a link 20 to one end. of a'lever 21 which is pivoted intermediate its ends by means of slot and pin connection to a cylindrical tank or vessel 22 which is best shown in Figures 4, 5 and 6. The, other end of the lever 21 is pivoted to a collar secured upon a siphon pipe 23 which is coupled at its' lower end to the pipe 4 and extends through the top of the vessel 22 and terminates a short distance from the bottom thereof. The pipe 23 is so designed that its highest point is lower than the top of the inner tube 2 of the burner for a purpose that will presently appear. The vessel 22 is loosely "supported from lateral movement by means of a bracket 24 extending from the siphon pipe 23. The upper end of the vessel 22 is provided with a grappling band 25 for engagement by ,a pair of diametrically opposite supporting hooks 26 which are ivoted upon a collar 27 secured upon the inverted end of the siphon pipe. These supporting hooks have depending arms 26 which lie adjacent the inverted portion of the pipe 23; the lower ends of these arms being outwardly inclined for receiving the upper end of a conical actuator 28 which is secured at its lower end to a float 29 in the vessel. When the float 29 rises the arms 26 will be swung outwardly by the conical actuator for disengaging the hooks from the band 25 allowing the vessel 22 to drop and actuate the lever 18 for closing the standpipe 8 and opening the drain pipe 19.

The float 29 is adapted to rise when suflicient oil has run into the vessel and this will occur when the burner has been accidently' extinguished leaving the oil to flow into the burner. Under such circumstances, the oil will rise in the burner until it approaches the top of the inner tube 2, when the oil will begin to flow into the vessel 22 and cause the float to rise until the actuator 28 releases the hooks 26 and allows the vessel to drop for actuating the valve lever 18 as just explained. It is therefore apparent that the vessel 22 constitutes a safety device to prevent the loss of oil if the burner should accidently go out or be extinguished without closing the valve in the pip]? 10. a

' hile the burner may beused for various purposes, it has been illustrated in connection with a furnace 30.

In using this burner and system, oil may be placed in the pan 3 for initially heating the burner, the valve 31 in the pipe 10 may then be opened to allow the oil to flow into blown out or ';be extinguished in any. way

without theflow of oil being shut 011', the oil will simply rise in the burner until it reaches a level that will cause it to flow through the. pipe'23-into the vessel 22 for 'tric tubes, a grant releasing the same and closing the oil valve.

of the burner. There will hence occur little or no carbonizat-ion in the vapor chamber between the pipes 1 and 2. I a

It is characteristic of this burner that no needle valve or restricted oil passage exists in which carbonization can occur to choke the burner, consequently such a burner is well adapted for burning crude oil or the like. It is also characteristic that the safety control for the apparatus depends for its action upon the flow of oil after the burner is extinguished, the very thing it serves to control.

I am aware that many changes may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

a I claim as my invention:

1. In an oil burner, a pair of concentric tubes rigidly united at their lower end, an oil supply pipe communicating with the space perforated cap attached to said end.

2. In an apparatus of the class described, an oil burner comprising a pair of concenfeed for said burner, a valve for controlling said feed and means for automaticall closing said valve when the burner is accidentally extin uished, said means comprising an upward y extending pipe communicating with said tubes, a lever connected to said valve and means adapted to actuate said lever when the oil between said tubes has risen to a height e ual to the height of said upwardly exten ing pipe.

3. In an apparatus of the class described,

tween said tubes, an air pipe con-v nected to the inner tube, the outer tube.

an oil burner, an oil reservoir, a pipe line extending from said reservoir to said burner, a siphon pipe connected to said pipe line, a vessel suspended on said siphon'pipe,

afloat in said vessel having means for releasingsaid-vessel when said float rises to apredetermined height and means in said burner for causing the oil to flow to. said vessel to actuate said float when the oil'in said burner reaches a predetermined height.

In testimony whereof I have hereunto subscribed 111 name.

A GUST A. RUSTEBERG. 

